DS1307 (DIP-8) 64 x 8 Serial I2C Real-Time Clock - (AD16776)

Description:

The DS1307 series real-time clock (RTC) is a full binary-coded decimal (BCD) clock/calendar with 56 bytes of NV SRAM. Address and data are transferred serially via an I2C bidirectional bus. The clock/calendar provides information on seconds, minutes, hours, day, date, month, and year. The end-of-month date is automatically adjusted for months with fewer than 31 days, including corrections for leap years. The clock operates in either 24-hour or 12-hour format with AM/PM indicator. The DS1307 has a built-in power-sense circuit that detects power failures and automatically switches to the backup supply. Timing operation continues while the part operates from the backup supply.

Features:

- Fully manages all timekeeping functions

- Real-time clock counts seconds, minutes, hours, date of the month, month, day of the week, and year with leap year compensation valid up to 2100

- 56-byte, battery-backed, general-purpose RAM with unlimited writes

- Programmable square-wave output signal

- Simple serial port interfaces to most microcontrollers

- I2C serial interface

- Low power consumption extends backup battery operating time

- Consumes less than 500nA in battery-backup mode with the oscillator running

- Automatic power-fail detection and switch circuitry

- 8-pin DIP and 8-pin SO minimize required space

- Optional industrial temperature range: -40°C to +85°C Supports operation in a wide range of applications

- Recognized by Underwriters Laboratories® (UL)

Datasheet